<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Filter
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Abstract.php 23775 2011-03-01 17:25:24Z ralph $
 */

/**
 * @see Zend_Filter_PregReplace
 */
require_once 'Zend/Filter/PregReplace.php';

/**
 * @category   Zend
 * @package    Zend_Filter
 * @uses       Zend_Filter_PregReplace
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
abstract class Zend_Filter_Word_Separator_Abstract extends Zend_Filter_PregReplace {
	
	protected $_separator = null;
	
	/**
	 * Constructor
	 *
	 * @param  string $separator Space by default
	 * @return void
	 */
	public function __construct($separator = ' ') {
		$this->setSeparator ( $separator );
	}
	
	/**
	 * Sets a new seperator
	 *
	 * @param  string  $separator  Seperator
	 * @return $this
	 */
	public function setSeparator($separator) {
		if ($separator == null) {
			require_once 'Zend/Filter/Exception.php';
			throw new Zend_Filter_Exception ( '"' . $separator . '" is not a valid separator.' );
		}
		$this->_separator = $separator;
		return $this;
	}
	
	/**
	 * Returns the actual set seperator
	 *
	 * @return  string
	 */
	public function getSeparator() {
		return $this->_separator;
	}

}